83 
more posterior region in B; but it is interesting to note that the 
same undermining occurs in the crocodile *) as in Amphibia. 
Through many sections’ the epithelial plate and the associated 
parietal mesoblast can be traced along the outside of the mesonephros. 
Fig. 5. 
Fig. 6. 
Fig. 5—8. Sections through a Crocodile nearly 20 mm long, through the anterior 
part of the mesonephrds region. 
_..1) Compare Horrmann on Lacerta, Zeitschr. f, wiss. Zool., Bd. 48, 
p. 277, and Fig. 22, Tafel XVII. _ 
